Scope of work Removal of asbestos sprayed coatings and asbestos cement sheeting from a disused building.
Methods Employed The work involved the removal of sprayed coating attached to corrugated roof sheets forming the roof over a disused building prior to its demolition.
A covered scaffold roof was erected over the top of the building and walkways provide around all elevations on the outside to allow the safe construction and erection of an enclosure encompassing the entire roof of the building down to eaves level.
Again the enclosure was erected using polythene sheeting attached to the inside of the scaffold with cloth tape and then class 0 foil tape.
The power was supplied by generators sited in drip trays at one end of the main building adjacent to a small adjoining boiler room where the NPU’s were sited on its flat roof.
Lighting was installed along with all roof boards and ladders for safe access on the actual asbestos roof.
The sprayed coating was injected using a low pressure injection machine and multi needles, the injection was carried out at night and the area injected, checked and removed during the day.
The entire sheets were removed with the coating still in place, long sharp knives were used to carefully cut the suppressed coating at the joins and seams of the roof sheeting and panels were individually wrapped in polythene for subsequent removal to the waste skip.
The work was carried out mainly from below using mobile towers cutting the hook bolts and after cutting the coating carefully lifting the sheets down to ground level to be wrapped for disposal.
One elevation was adjacent to network rail tracks and the initial scaffold erection and some cement rainwater goods removal was carried out under a 52hr possession of the tracks and subsequently removed in a 52hr possession.
The client and Network rail were very happy with our performance on site.